This has been a joint project with Zoological Society of London, to share the method which they developed with Thames Water to get local volunteers mapping polluting surface water outfalls. Citizen Crane, Thames21, South East Rivers Trust and Trent Rivers Trust have all used the methodology in partnership with EA and their local water companies, and the polluting outfalls which have been surveyed are being tackled to deliver cleaner, healthier rivers.

The resource pack includes a guide to running your own outfall safari, technical manuals for setting up the mobile data capture apps, case studies, volunteer training and reporting templates and a set of GIS and mapping resources.